05000425/FIN-2016007-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Failure to Perform Required In-Service Testing of Unit 2 CST Swap over Valves |
| Description | The NRC identified a Green non-cited violation of Technical Specification 5.5.8, Inservice Testing Program, for Vogtle Unit 2 failure to perform the required testing in accordance with the American Society of Mechanical Engineers Operation and Maintenance Code for nine valves that had active safety functions. Specifically, these valves were required to operate when aligning the AFW pumps from Condensate Storage Tank (CST) 1 to CST 2. The violation was entered into the licensees corrective action program as condition report 10293900. The licensee performed an immediate determination of operability and determined that the CST valves were operable but degraded nonconforming. The licensee planned to register the CST valves into the IST program and exercise those valves that that have never been exercised at the first available opportunity. The performance deficiency was determined to be more than minor because it was associated with the Mitigating Systems Cornerstone attribute of Equipment Performance, and affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, degraded valve performance could go undetected without periodic testing and trending. The team determined the finding to be of very low safety significance (Green) because the finding was not a design or qualification deficiency, did not represent a loss of system and/or function, and did not represent the loss of any trains of TS or Non-TS equipment. The team did not assign a crosscutting aspect because the most significant contributor did not reflect current licensee performance. |
| Site: | Vogtle  |
|---|---|
| Report | IR 05000425/2016007 Section 1R21 |
| Date counted | Dec 31, 2016 (2016Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.21 |
| Inspectors (proximate) | A Della Grecaa Ruh J Bartley J Eargle T Fanelli T Su W Sherbin |
| Violation of: | Technical Specification |
| INPO aspect | |
| ' | |
Finding - Vogtle - IR 05000425/2016007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Vogtle) @ 2016Q4
Self-Identified List (Vogtle)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||